Patents by Inventor Hyeon Yong Lee

Hyeon Yong Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250052564
    Abstract: A camera device according to an embodiment of the present invention includes a light output unit which emits light signals having a predetermined pattern to an object, a light input unit which receives light signals reflected by the object, a depth map generation unit which generates a depth map of the object using the light signal input to the light input unit, and a control unit which controls the light output unit, the light input unit, and the depth map generation unit, wherein the light output unit includes a plurality of light sources including a first light source and a second light source, the light input unit includes an image sensor, the first light source and the second light source are symmetrically disposed with the image sensor interposed therebetween, the first light source outputs first light signals having a first pattern formed of a plurality of dots, the second light source outputs second light signals having a second pattern formed of a plurality of dots, and the plurality of dots forming
    Type: Application
    Filed: September 30, 2022
    Publication date: February 13, 2025
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Young Sik SONG, Hyeon Yong LEE, Du Ri JO, Sung Won ROH
  • Publication number: 20150132818
    Abstract: Disclosed is a method of saccharifying biomass, such as algae or agricultural by-products by performing a high-pressure extrusion pulverization process for the biomass, such as algae or agricultural by-products, and more particularly to a method of saccharifying biomass, which includes homogenizing and crushing algae or agricultural by-products, and extruding the algae or agricultural by-products through a micro-diameter tube to pulverize the algae or agricultural by-products. Non-biodegradable polymers, such as cellulose, which is a polysaccharide included in biomass, such as algae or agricultural by-products, hemicelluloses, starch, and complex polysaccharide, are hydrolyzed at high glycosylation efficiency through an eco-friendly pretreatment process using water.
    Type: Application
    Filed: May 2, 2012
    Publication date: May 14, 2015
    Inventors: Do-Hyung Kang, Hyeon-Yong Lee, Woon-Yong Choi, Choon-Geun Lee, Yong-Chang Seo, Ji-Seon Kim, Chi-Ho Song, Kyung-Hwan Jung, Sang-Eun Lee
  • Patent number: 7763724
    Abstract: A high-pressure liquefied extract of marine algae for producing bioethanol and a method of producing the liquid extract from marine algae under high pressure, and a method of producing the bioethanol from the high-pressure liquid extract by fermentation with yeast are disclosed. According to the production method of bioethanol using marine algae, the high-pressure liquefied extract can be obtained in high yield and fermentation time can be also reduced. Consequently, the yield of bioethanol is increased. Furthermore, the method gives economical and environmentally friendly values from natural marine algae.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 27, 2010
    Assignee: Korea Ocean Research And Development Institute
    Inventors: Do Hyung Kang, Hyeon Yong Lee, Jae Gun Han, Heung Sik Park, Hyi Seung Lee, Rae Seon Kang
  • Publication number: 20100041926
    Abstract: A high-pressure liquefied extract of marine algae for producing bioethanol and a method of producing the liquid extract from marine algae under high pressure, and a method of producing the bioethanol from the high-pressure liquid extract by fermentation with yeast are disclosed. According to the production method of bioethanol using marine algae, the high-pressure liquefied extract can be obtained in high yield and fermentation time can be also reduced. Consequently, the yield of bioethanol is increased. Furthermore, the method gives economical and environmentally friendly values from natural marine algae.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 18, 2010
    Applicant: KOREA OCEAN RESEARCH AND DEVELOPMENT INSTITUTE
    Inventors: Do Hyung Kang, Hyeon Yong Lee, Jae Gun Han, Heung Sik Park, Hyi Seung Lee, Rae Seon Kang